package exeption;

import java.io.FileOutputStream;
import java.io.IOException;

public class AutoCloseableDemo {
    public static void main(String[] args) {
        try (
                FileOutputStream fos= new FileOutputStream("fos.dat");
                ){
            fos.write(1);
        } catch (IOException e) {
            System.out.println("错误了");
        }

    }
}
